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Academic

CBSE Class 8 Science

NCERT foundation practice — Class 8 Science

45 min20 questions33% pass markIndia
Exam blueprint

What this exam covers

14 topics · 20 questions in the bank
Topic weights below mirror the real exam blueprint. To practise any single topic, use the Your study path panel on the right.
01Crop Production and Management
10%2 questions
02Microorganisms
10%2 questions
03Coal and Petroleum
10%2 questions
04Combustion and Flame
10%2 questions
05Cell Structure and Functions
10%2 questions
06Sound
10%2 questions
07Synthetic Fibres and Plastics
5%1 question
08Materials Metals and Non-metals
5%1 question
09Conservation of Plants and Animals
5%1 question
10Reproduction in Animals
5%1 question
11Force and Pressure
5%1 question
12Friction
5%1 question
13Chemical Effects of Electric Current
5%1 question
14Light
5%1 question
How to prepare

How to prepare for CBSE Class 8 Science

01
Plan your study time
Budget roughly 6–8 weeks of regular revision for CBSE Class 8 Science. Block fixed daily sessions rather than occasional long ones — spaced, consistent practice retains far better than cramming.
02
Start with the official material
Work from the official syllabus or study guide first so you know exactly what is in scope and how each area is weighted. The "Official source" block below links to the exam authority.
03
Build a practice cadence
Drill your weakest topics two to three times a week using focused practice, then sit one full, timed mock each week. Review every wrong answer immediately and write down the rule or concept you missed.
04
Watch the common pitfalls
Studying passively by re-reading instead of solving previous-year papers, and neglecting presentation/answer-structure that the marking scheme rewards.
05
The final 7 days
Stop learning new material and switch to consolidation: full timed mocks, a one-page sheet of high-frequency facts you keep slipping on, and a calm sleep schedule. Aim to be comfortably above the pass mark on mocks before test day.
06
Exam-day logistics
Reach the exam hall well before reporting time with your admit card and a transparent pouch of permitted stationery. Read the full paper in the reading time, attempt the questions you are surest of first, and keep a strict per-section time budget.
Official source
CBSE
The Central Board of Secondary Education sets the syllabus and conducts these exams.
AceMark is an independent practice tool, not affiliated with the exam authority. Always confirm the current syllabus, fees and dates on the official site.
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Frequently asked questions

Is the CBSE Class 8 Science practice test free?

Yes. The CBSE Class 8 Science practice test on AceMark is completely free — no paywall, no credit card, no premium tier. Sign in (free, takes 10 seconds) if you'd like to track your progress, save attempts, and unlock the AI study coach. Otherwise, browse and explore questions without an account.

How many questions are in the CBSE Class 8 Science quiz?

Each CBSE Class 8 Science attempt draws 20 questions and runs for about 45 minutes under realistic timed conditions.

Can I retake the CBSE Class 8 Science test, and are the questions randomised?

Yes. Every attempt pulls a fresh, randomised set of questions, so you can't memorise your way through — you retake it until you genuinely know the material.

What score do I need to pass the CBSE Class 8 Science?

The pass mark used in this simulation is 33%. AceMark scores every attempt instantly and shows which topics to review.